|Date announced|Plant name|Location|Date of closing|Products|Employees|
|---|---|---|---|---|---|
|January 23, 2006|St. Louis Assembly|Hazelwood, Missouri|2006|Ford Explorer Lincoln Aviator Mercury Mountaineer|1,445|
|January 23, 2006|Atlanta Assembly|Hapeville, Georgia|Oct. 2006|Ford Taurus Mercury Sable|2,028|
|January 23, 2006|Batavia Transmission|Batavia, Ohio|2008|transmissions|1,745|
|January 23, 2006|Windsor Casting|Windsor, Ontario, Canada|2008|Engine blocks, parts|684|
|January 23, 2006|Wixom Assembly|Wixom, Michigan|June 2007|Lincoln Town Car Lincoln LS Ford GT|1,567|
|April 13, 2006|Twin Cities Assembly|St. Paul, Minnesota, USA|2011|Ford Ranger Mazda B-Series|1,885|
|April 13, 2006|Norfolk Assembly|Norfolk, Virginia, USA|2007|Ford F-Series|2,433|
|September 14, 2006|Essex Engine|Windsor, Ontario, Canada|2008|Ford Triton engine Ford Essex V6 engine||
|September 14, 2006|Maumee Stamping|Maumee, Ohio|2008|body panels||
|Total|Total|Total|Total|Total|11,787|

Question: how many plants have at least 1,500 employees?
Answer: 5